Trouble adding images to forum posts

I'm looking for helping attaching a specific item to a cuff and I would like to add an image of the item so I can better ask for advice. Every time I try to attach the jpeg file it says that it was attached but doesn't show up in the forum post. I'm kind of a dummy when it comes to using my computer so I'm probably making some simple user error but if anyone else has this problem or knows how to fix it I would appreciate the help!